Why were these nearby objects discovered only recently? In fact,
Luh-16 was detected in a number of surveys going as far back as
the 1970-90s [1]}, but its high proper
motion (8.1\(\pm \) 0.1 arcsec yr\(^{-1}\) ) and the crowded region
of the sky it resided in prevented astronomers from recognizing
that these detections belong to the same object. The
non-detection of W0855 is due to its intrinsic faintness
[2]}, [3]}, [4]}, [5]}.
